Yes, the most important person around you in any traditional job is your direct boss.
Let me just put it like this:
I have had interesting jobs with awful bosses.
I have also had boring jobs with great bosses.
And the second is infinitely preferred to the first.
I mean, show me someone who has no friend or ally in their boss at work – and I’ll show you someone who is looking for another job.
At work, our sense of commitment and control depends more on our direct boss than on anyone else. When we have a supportive boss, our bond with the organization strengthens and we feel a greater span of influence.
-Adam Grant, Originals